a decreasing trendp < 0.001
Hypertension and in‐hospital outcomes among breast cancer patients Within NIS, overall unadjusted in‐hospital mortality rates followed a decreasing trend among all groups over an extended period of time from 2003 to 2015 ( p ‐trend for breast cancer <0.001 as well as non‐cancer group p < 0.001, respectively); but was unchanged over the 2007 to 2015 period.